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Finding the Fourth Proportional to 129,615.40, 194,423.10 and 114,063.40

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Solution

The fourth proportional to 129,615.40, 194,423.10 and 114,063.40 is: 171,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,615.40 : 194,423.10 = 114,063.40 : x
  2. Step 2: Convert to fraction form
    129,615.40/194,423.10 = 114,063.40/x
  3. Step 3: Cross multiply
    129,615.40x = 194,423.10 × 114,063.40
  4. Step 4: Simplify right side
    129,615.40x = 22,176,559,824.54
  5. Step 5: Solve for x
    x = 22,176,559,824.54/129,615.40
  6. Step 6: Final answer
    x = 171,095.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.